Relative Sequence
Definition
An ordering supported by preserved relationships, without a measurement of elapsed time. State which physical relationship supports the proposed sequence. An order is not a measured elapsed interval or an absolute date.
- Context
- Event ordering
For example, one layer lying over another can support an ordering without showing whether minutes or years separated their deposition.
Later alteration and incomplete preservation can limit the inference.
Related terms
- Hackle
- Fracture-surface lines approximately parallel to local crack growth. Record the relevant surface and geometry. One visible line is not automatically a complete...
- Radial Crack
- A crack that runs outward from the point of impact, like spokes of a wheel. The 3R rule applies: Radial cracks have...
- Wallner Lines
- Wallner lines are curved fracture-surface markings associated with interactions between a moving crack front and elastic disturbances under suitable conditions. They can...